A.33 library(persistency): Provide persistent dynamic predicates
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  • Documentation
    • Reference manual
      • The SWI-Prolog library
        • library(persistency): Provide persistent dynamic predicates
          • persistent/1
          • current_persistent_predicate/1
          • db_attach/2
          • db_attached/1
          • db_assert/1
          • db_detach/0
          • db_retractall/1
          • db_retract/1
          • db_sync/1
          • db_sync_all/1
    • Packages
Availability::- use_module(library(persistency)).(can be autoloaded)
Source[semidet]db_attached(:File)
True if the context module attached to the persistent database File.